Anesthesia demonstration device



Oct. 12, 1937. v w. T. OBERTO 2,095,511

ANESTHESIA DEMONSTRATION DEVICE Filed March 8, 1937 2 Sheets-Sheet lINVENTOR.

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Oct. 12, 1937. w. T. OBERTO ANESTHESIA DEMONSTRATION DEVICE 2Sheets-Sheet 2 Filed March 8, 1937 INVENTOR.

A SORNIY.

i atentecl Oct. 12, 1937 I V y UNITED STAS ?IATENT OFFIQEAnnsrnrismpnMoNs'rRA'rroN DEVICE William T. Oberto, Denver, C010. i IApplication March 8, 1937, Serial No. 129,608

I I l 6 Claims. (01.. 32-71) This invention relates to a device fordemontacks or screws inserted through the skull H and. strating andinstructing physicians, dentists, and completely concealed by theoverlying sponge rubstudents, in the technic of nerve-block anestheber.From each contact, an electrical conductor sia. The principal object of(the invention is to it extends downwardly through the neck of the 7provide a model patients'head with an oral cavmodel. 'The conductors l3are led into the supity havinggresilient buccal andli'ngual surfacesporting cabinet l and each terminates in an elecinto which "an injectionneedle may be inserted, trio light bulb M. and to conceal beneath thesesurfaces at the Thebulbs Hi are preferably placed to the rear properpoints on the desired nerve locations, elecof a glass plate l upon whichare lettered the 1;) trical contacts which, if contacted by the needlenames of the various nerves or descriptions of the 10 will give eitheror both an audible and visible invarious oral areas which the individualnerves .dication. that the proper position has been accuserve, as shownat It, in Fig. 1. Current is fed to rately reached. i the bulbs from asuitable transformer ll through The device is particularly useful intraining the a main conductor H3. The other lead from the l5 hands andthe eye of students so that they will be transformer, indicated at is,is conducted through l5 skilled in placing the hypodermic needle at thea flexible cord 25- to a hypodermic syringe 2| of proper points toanesthetize the desired nerves. the type used for local anesthesia ornerve Other objects and advantages reside in the' deblock operations. atail construction 'of the invention, which is de- The sponge rubbercushion which represents 1 signed for simplicity, economy, andefiiciency. the mouth tissue permits the needle of the syringe Thesewill become more apparent from the follow- M to be easily and repeatedlyinserted without ing description. damage and without disclosing thepoints of In the following detailed description of the inperforation.vention reference is had to the accompanying In use, the operatorselects the mouth section 5 drawings which form a part hereof. Likenuwhich he desires to anesthetize. He then inserts merals refer to likeparts in all views of the drawthe needle of the syringe into the spongerubber ings and throughout the description. 22 in the direction of thenerve which serves the In the drawings:- chosen section. If the needleis correctly insert- Fig. l is a perspective view illustrating thecomed, its point will strike the contact l2 representplete device inuse. ing the proper nerve position for the chosen sec- 30 Fig. 2 is'adetail inferior maxillary section of tion. This causes the lamp incircuit with that the model employed with the device. contact toilluminate one of the plates I6 to dis- Fig. 3 illustrates a verticalsection through the play either the name of the desired nerve orrthecompletedevice. In this section the skull portion description of thesection which would be anof'the modelisnot cut by the section but isshown esthetized. The circuit to the contact is, of 35 in sideelevation. course, completed through the cord 20 and the Fig. 4 is adetail superior maxillary section of syringe 25. the model. If desired,an audible signal such as an electric The invention comprises a suitablesupporting buzzer or bell can be placed in series with the 4.0 cabinet[0 upon which is mounted a model of a main lead 18 as shown at 24, sothat whenever a 40 human head such as indicated at 25. The head contactis made, an audible signal will indicate is preferably molded of asuitable resilient comthe closing of the circuit and a visible signalwill pound such as Koragel over a skull II. The indicate which one ofthe contacts has been portions of the model which represent the tissuesreached. 43 which invest the necks of the teeth and cover the By formingthe cheeks, gums, and tongue of 45 alveolar parts of the jaws are formedof porous the model from sponge rubber,they can be manipor sponge rubberas indicated at 22. The skull ulated with the fingers similarly to thenatural is preferably an exact reproduction of a human surfaces and canbe pierced many times with the skulland serves not only as a foundationfor the needle without showing holes or perforations head mold, but alsoas a foundation or support which would indicate to other users, thesought 50 for a series of electrical contact points l2 which positions.

are attached to the skull at points corresponding For structuralreasons, it is preferred to rigidly to the proper anesthetizing pointson the nerve support the skull II on a short pipe nipple 23 locationsserving the oral cavity. which is clamped to the cabinet l9 by means ofThe contacts 12 are preferably headed metal clamp nuts 26 to securelyhold the model in place. 55

' in circuit with said The nipple 23 also serves as a convenient conduitfor the conductors [3.

While the invention has been described simply as pertaining to thenerves of the oral cavity of the human body; to include any otherdesired'portion or portions of the body or a complete body model couldbe employed if desired. A model representing the human vertebral columncould be used for demonstrating and instructing in spinal anesthesia.

The indicating lamps are illustrated in the face of the supportingcabinet. They could, of course, be placed at any desired location, evenat a distance from the model if desired. The principal feature of theinvention is the concealing of electrical contacts within a model atpoints where it is desirable for an injection needle to reach so that adefinite indication will be given the operator when the needle has beencorrectly and properly inserted. The device is easily portable. Anelectric cord 2? can be led from the transformer I l to any convenientelectric outlet.

While a specific form of the improvement has been described andillustrated herein, it is desired to be understood that the same may bevaried, Within the scope of the invention.

Having thus described the invention, what is claimed and desired securedby Letters Patent is:-

1. A device for demonstrating local anesthesia comprising: amodel of aportion of the human body; electrical contacts concealed below thesurface of said model at points corresponding to nerve location in thehuman body; a signal system in circuit with said contacts; and a probingmember in the circuit of said system so that when the probing member isinserted through the surface of the model, an indication will be givenprovided one of the contacts is contacted by said'probing member.

2. A device for demonstrating local anesthesia comprising: a model of aportion of the human body; electrical contacts concealed below thesurface of said model at points corresponding to nerve location in thehuman body; a signal system contacts; a probing member inv the circuitof said system so that when the probing member is inserted throughthesurface of the model, an indication will be given provided one of thecontacts is contacted by said probing member; a chart containingdesignations referring to the individual contacts; and an electric lampfor each designation on said chart, each of said lamps being in circuitwith one of said contacts.

it could of course be expanded 3. A device for demonstrating the technicof local anesthesia comprising: a model of the human head; flexible,perforatable surfaces representing the tissues of the mouth of saidhead; a series of contacts covered by said surfaces, each of saidcontacts being positioned at a point corresponding to a nerve locationin the human head; a series of electric lamps; a conductor leading fromeach of said contacts to one of said lamps; and a chart carrying aseries of designations referring to the location of said contacts, eachof said lamps beingarranged to illuminate one of said designations.

4. A device for demonstrating the technic of local anesthesiacomprising: a model of the human head;

the latter is inserted into saidv surfaces, a circuit will be closedwhen one of. said 'contacts is conilluminate a designation on saidchart.

5. Alocal anesthesia demonstration devicecom prising: a skull memberrepresenting a human skull; sponge-like rubber covering the alveolarportions of said skull member; electriccont'act members supported bysaid skull member and concealed by said rubber'covering; and an electric signal device in circuit with'feach of said contacts.

6. A local anesthesia demonstration d'evice comprising: a skull memberrepresentingfia human skull; sponge-like rubber coveringthe'alyeol'arpor tions of said skulllm'ember; electric contact mem berssupported by said skull member and' concealed by said'rubber covering;acabinet supporting said'skull member; a translucent face in saidcabinet carrying designations referring. to the position of saidcontacts; a probing. member; and a series of lamps in said cabinet, eachof said lamps being positioned opposite one of the designations so thatthe latter will becomeilluminated when its cooperating, contact isclosed.

WILLIA T; OBERTOL,

